Yes, they are entitled to their opinion. Even the poor. (eye roll) Even people whose opinions are meaningless to the subject. For example, someone blind telling you the color red looks ugly with your hair color.
That person is entitled to tell you you look ugly in red. Is their opinion worth listening to? I hope I don't have to answer that.
That is my take away from the opening statement. Then I opened the link and read more because it said there are two things that disqualify you from having your opinion heard.
Only one is listed above. And, the example given isn't great. Here is the rest of the cut and paste:
If you're working in Accounts Payable and you hate the company's new logo, the people who created it should and must ignore your opinion. It just doesn't matter to anyone but you.
I'm being deliberately harsh here for a reason. If we're going to do great work, it means that some people aren't going to like it. And if the people who don't like it don't have an impact on what happens to the work after it's complete, the only recourse of someone doing great work is to ignore their opinion.
2. No Credibility. An opinion needs to be based on experience and expertise. I know you don't like cilantro, but whether or not you like it is not extensible to the population at large. On the other hand, if you have a track record of matching the taste sensibility of my target market, then I very much want to hear what you think.
People with a history of bad judgment, people who are quick to jump to conclusions or believe in unicorns or who have limited experience in the market--these people are entitled to opinions, but it's not clear that the creator of the work needs to hear them. They've disqualified themselves because the method they use for forming opinions about how the market will respond is suspect. The scientific method works, and if you're willing to suspend it at will and just go with your angry gut, we don't need to hear from you.
If these two standards sound like precisely the opposite of what gets you on talk radio or active in anonymous chat rooms, you're right. Running your business or your campaign or your non-profit or your sports team based on what you hear on talk radio is nuts.
After reading this whole blog I believe that yes, everyone is entitled to their opinion. Is is worth giving? It depends. Do I have expertise in the area? Do I have knowledge in the area? Am I well read in the area I am dissing or wanting to debate? If all I'm doing is *giving an opinion*, well that is like a butt hole.
Which is why my post count is so low.